99616420

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{12421}}^1$

素因数の和:12831

約数の個数: 24

約数和(自身を含む): 209733048

約数和(自身を除く): 110116628

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 12421, 24842, 49684, 62105, 124210, 248420, 4980821, 9961642, 19923284, 24904105, 49808210, 99616420]

約数ペア:

[(1, 99616420), (2, 49808210), (4, 24904105), (5, 19923284), (10, 9961642), (20, 4980821), (401, 248420), (802, 124210), (1604, 62105), (2005, 49684), (4010, 24842), (8020, 12421)]